08/11/2026
Dear Dems
Will you help lower excessive local fees that prevent ADUs from being built?
California YIMBY is sponsoring SB 1117 by Senator Sabrina Cervantes to reduce barriers that make it harder for homeowners to build ADUs.
It's about to come up for a vote on the Assembly floor, and passage is not assured before the August 31 deadline. Special interest groups with significant influence in Sacramento are working hard to try and stop this bill. Your voice can make the difference.
Please send a message to your Assemblymember: Vote YES on SB 1117!
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Here's why SB 1117 matters: it tackles huge impact fees charged by local governments that have become a crucial problem facing ADUs.
Under current law, ADUs of 750 square feet or less are exempt from most local impact fees—the charges cities impose to fund parks, roads, fire stations, and other infrastructure. Once an ADU exceeds 750 square feet, however, the homeowner must pay impact fees based on the entire unit's size, not just the extra square feet.
In jurisdictions where impact fees run $10 to $30 or more per square foot, that cliff can add $8,000 to $24,000 to project costs overnight. Property owners either shrink their designs to stay under the cap, limiting their flexibility and use, or abandon ADU plans altogether.
SB 1117 fixes this by switching to a reasonable fee structure, reducing a cost barrier and helping build more ADUs.
Unsurprisingly, opponents are already mobilizing to try and stop SB 1117, and will do everything they can to kill the bill in these crucial last weeks. Your calls and emails made the difference in committee votes and on the State Senate floor. Now we need one last, strong push to get the Assembly to pass it.
Will you send a message to your Assemblymember? Urge them to vote YES on SB 1117!
Gratefully,
Emily
Emily Jones
Deputy Chief of Staff
California YIMBY